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ANZ050 Coastal Waters From Eastport, Me To Schoodic Point, Me Out 25 Nm- 1006 Pm Est Sat Dec 2 2023
.small craft advisory in effect from Sunday afternoon through Monday evening...
Rest of tonight..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sun..NE winds 10 to 15 kt, becoming E 15 to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of showers in the morning, then rain likely in the afternoon with vsby 1 to 3 nm.
Sun night..E winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Rain. Vsby 1 nm or less.
Mon..NE winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 7 ft. Rain and snow. Vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon.
Mon night..N winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 4 to 7 ft. Rain likely in the evening, then a chance of rain and snow after midnight. Vsby 1 to 3 nm.
Tue..N winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of rain and snow showers in the morning.
Tue night..N winds 10 to 15 kt. Seas 2 to 4 ft. A chance of snow and rain showers.
Wed..N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow showers in the morning.
Thu..NW winds 10 to 15 kt. Seas 2 to 3 ft.

ANZ005 1006 Pm Est Sat Dec 2 2023
Synopsis for eastport me to stonington me out 25 nm.. High pres will build across the region tonight into Sun. Low pres will approach Sun night, cross the waters Mon, then exit across the maritimes into Tue. High pres will build toward the region Wed into Thurs.

FXUS61 KCAR 030313 AFDCAR

Area Forecast Discussion National Weather Service Caribou ME 1013 PM EST Sat Dec 2 2023

SYNOPSIS
Weak low pressure will track into the Maritimes tonight. High pressure will be to our north into Sunday. Another low will approach Sunday and track south of the area Sunday night into Monday. A weak upper trough will remain over the area through the middle of the week, with surface high pressure building in Wednesday into Thursday.

NEAR TERM /THROUGH SUNDAY/
1015 pm update...
Temps and dwpts are very slowly dropping as cold and dry air pushes in with 1025mb sfc high builds swrd late tonight. 00z raob out of KCAR shows almost entire blyr blo 0C and will likely be reinforced by cold air damming tomorrow ahead of next system moving in late in the aftn. Have removed fog for the overnight hours as low clouds remain locked in. Hv also removed pops for snow showers though can't rule out a flurry acrs nrn areas at some point drg the overnight. No major chgs needed to fcst with this update.

Prev discussion blo...
Tomorrow the cold air damming holds temperatures below freezing across the northern 1/3rd of the CWA in the upper 20s to low 30s. In southern areas expect mid 30s. By late afternoon a 500mb shortwave will be negatively tilted working into the Eastern Great Lakes states with nearly vertically stacked surface low beneath. At the same time upper level divergence will setup off the Long Island coast which will give way to secondary cyclogenesis. Precipitation will begin to break out by afternoon closer to sunset from SW to NE across the area. Precipitation will likely be snow from Bangor to Calais and points northward thanks to the cold air damming with dew points below freezing the wet bulb will be key to watch for snowfall tomorrow.
Rain/Snow mix south of the Route 9 corridor with just rain along the Downeast Coast. Roads may become slippery before sunset in places that stay below freezing and north of I-95 in Bangor area. Conditions go downhill into the evening as mentioned below...

SHORT TERM /SUNDAY NIGHT THROUGH MONDAY NIGHT/
A 500mb shortwave will cross northern New England Sunday night, ahead of a deepening longwave trough turning neutrally tilted through the early week. The shortwave will be fed by the left exit region of a 185kt jet streak, providing plenty of instability for a storm to spread across the forecast area Sunday night into Monday. This jet streak is forecast to be within the top 10% of climatology for wind speed in the northeast region, which will enhance the dynamics of this system. A surface low will be move into southern Quebec prior to occluding, leading to a triple-point low to develop on the coast and tracking up through the Gulf of Maine. This system will be tapped into the Gulf Stream for advecting in mid-level moisture as well.

With northeasterly flow during this storm, cold air will dam up along the higher terrain of western Maine, leading to a cold pool across much of our forecast area near the surface. This cold pool will aid in keeping temperatures below freezing from the surface up, and maintaining an all-snow precip type down through the coast. Some question remains where a heavier band of snow may set up, as well as the exact snow-to-liquid ratios (SLRs) that will be seen. With plentiful cold air through the coast, SLRs could be up to 12:1 near the coast, or if the cold air dam is less intense, SLRs could remain well below 10:1.
Snowfall rates will also affect temperatures, and so more snow and higher SLRs may be seen in any deformation band that sets up, further amplifying storm total potential in that area.

Though uncertainty remains in these finer details, there is fairly high confidence (75%) of 6 to 8 inches of snowfall across the central third of our forecast area. Portions of Downeast closer to the coast will see warmer temperatures at onset and lower SLRs, and may struggle to reach 6 inches of snow. That said, should the heavier snow band shift southwards, they could easily see at least 6 to 8 inches of snow. Across the Crown of Maine, there is moderate confidence (65%) that there will be around 2 to 4 inches of snow, but these totals will be even more reliant on low track, as to whether the northern tier sees a dusting of snow or closer to 4 to 6 inches of snow.

LONG TERM /TUESDAY THROUGH SATURDAY/
An upper level trough will remain overhead through the middle of the week, brining generally unsettled weather to the area. That said, a ridge of surface high pressure is likely to build into the area by Wednesday, and last through much of the rest of the week. This high pressure will reduce the threat for snow showers, though a few flurries cannot be ruled out with the upper level trough in place. Temperatures will be quite cold through the middle of the week as well with persistent cold air advection, as low temperatures will fall into the single digits above zero across the north Tuesday through Thursday nights, with the Downeast region falling into the lower teens for lows into the middle of the week as well.

AVIATION /03Z SUNDAY THROUGH THURSDAY/
NEAR TERM: Northern terminals will vary between IFR and VFR for the first few hours this evening but likely to settle down toward IFR by midnight. HUL, BGR and BHB likely to see LIFR cigs through about 06z Sunday before gradually improving to IFR and MVFR after 13z. Light -rasn at BHB moves in after 18z, -sn at BGR after 19z and after 22z at HUL.

SHORT TERM: Sunday night...MVFR with occasional drops to IFR/LIFR in heavier snow, especially from BGR up through HUL. NE winds 5 to 10 kts.

Monday...MVFR with occasional drops to IFR/LIFR In heavier snow, especially from BGR up through HUL Monday morning. NE winds 5 to 10 kts.

Monday night...MVFR with brief periods of IFR in snowfall. N winds 5 to 10 kts.

Tuesday...MVFR cigs. NW winds 5 to 10 kts.

Tuesday night...Improving towards VFR. Light N to NE winds.

Wednesday - Thursday...Generally VFR with MVFR/IFR possible each morning with lower cigs. Winds light and variable.

MARINE
NEAR TERM: Winds/waves will remain below SCA into Sunday midday.
NE winds will increase later in the day and begin to gust 25-30kt over the coastal waters by sunset. Small Craft Advisory goes into effect at 4pm on Sunday for the Coastal Waters.
Intra-Coastal waters expected to remain below 25kt at this point. Waves 2-3ft this evening becoming 3-4ft tomorrow. Wave period intially 5-6sec tonight becoming 8-9sec tomorrow.

SHORT TERM: An SCA is currently in place Sunday night through the day on Monday, mostly for seas as they sit at 5 to 7 ft, though winds will gust to 30 kts early on. Intra-coastal waters may need to be added to this SCA should gusts increase more pending the track of the storm. Conditions will slowly improve through the middle of the week.

CAR WATCHES/WARNINGS/ADVISORIES
ME...Winter Storm Watch from Sunday afternoon through Monday evening for MEZ003>006-010-011-015>017-031-032.
MARINE...Small Craft Advisory from 4 PM Sunday to 7 PM EST Monday for ANZ050-051.

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Robbinston
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Sat -- 02:00 AM EST     18.08 feet High Tide
Sat -- 06:47 AM EST     Sunrise
Sat -- 08:14 AM EST     2.54 feet Low Tide
Sat -- 11:22 AM EST     Moonset
Sat -- 02:15 PM EST     19.09 feet High Tide
Sat -- 03:47 PM EST     Sunset
Sat -- 08:39 PM EST     Moonrise
Sat -- 08:44 PM EST     1.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Robbinston, Maine, Tide feet

Grand Manan Channel (Bay of Fundy Entrance)
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Sat -- 02:55 AM AST     -0.00 knots Slack
Sat -- 05:53 AM AST     -1.63 knots Max Ebb
Sat -- 07:45 AM AST     Sunrise
Sat -- 08:38 AM AST     0.00 knots Slack
Sat -- 11:33 AM AST     1.93 knots Max Flood
Sat -- 12:20 PM AST     Moonset
Sat -- 02:40 PM AST     -0.00 knots Slack
Sat -- 04:48 PM AST     Sunset
Sat -- 06:05 PM AST     -1.95 knots Max Ebb
Sat -- 09:07 PM AST     0.00 knots Slack
Sat -- 09:39 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Grand Manan Channel (Bay of Fundy Entrance), New Brunswick Current, knots

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